External Components Description Components 1. C This is the input coupling capacitor. It blocks the DC voltage and couples the input signal to the IN amplifier’s input terminals. C Impedance This is the supply bypass capacitor. ...

Application Information CD4 COMPATIBLE INTERFACE The LM4857 uses a serial bus, which conforms to the I protocol, to control the chip’s functions with two wires: clock (SCL) and data (SDA). The clock line is uni-directional. The data ...

Application Information Best thermal performance is achieved with the largest prac- tical copper heat sink area. If the heatsink and amplifier share the same PCB layer, a nominal 2in for 5V operation with a 4Ω load. Heatsink areas not placed ...

Application Information The maximum power dissipation point given by Equation (9) must not exceed the power dissipation given by Equation (10): P ’ DMAX JMAX The LM4857’ 150˚C. In the ITL package, the JMAX ...

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